The Latest on the extremist attack on a hotel complex in Nairobi, Kenya (all times local):

19:30

The British aid group Gatsby says its Africa programs director is among those killed in the attack in Kenya's capital.

A statement says the group is "shocked and saddened" to confirm the death of Luke Potter.

The British high commissioner earlier on Wednesday said a British national was among the 14 victims in the attack in Nairobi.

The Gatsby statement says Potter "had devoted the past 10 years of his career to helping some of the poorest and most vulnerable people in the world."

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17:45

The father of the American killed in the attack in Kenya's capital says his son worked in the complex and often ate at a cafe in the luxury hotel targeted by the gunmen.

Jason Spindler's father, Joseph, says his son grew up in Houston, graduated from the University of Texas and was enjoying a successful career on Wall Street when he decided that he wanted to develop a model for helping low-income people.

Jason Spindler entered the Peace Corps and lived in Peru, where he developed sustainable business models for rural residents.

Spindler, who would have turned 41 next Tuesday, later became a founder of I-DEV International and had been living in Kenya for about five years.

His father says he worked with international companies to form business partnerships in Kenya that would boost local economies